id stringlengths 9 16 | title stringlengths 4 278 | categories listlengths 1 13 | abstract stringlengths 3 4.08k | filtered_category_membership dict |
|---|---|---|---|---|
0909.0777 | Optimally Tuned Iterative Reconstruction Algorithms for Compressed
Sensing | [
"cs.NA",
"cs.IT",
"cs.MS",
"math.IT"
] | We conducted an extensive computational experiment, lasting multiple CPU-years, to optimally select parameters for two important classes of algorithms for finding sparse solutions of underdetermined systems of linear equations. We make the optimally tuned implementations available at {\tt sparselab.stanford.edu}; they ... | {
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0909.0801 | A Monte Carlo AIXI Approximation | [
"cs.AI",
"cs.IT",
"cs.LG",
"math.IT"
] | This paper introduces a principled approach for the design of a scalable general reinforcement learning agent. Our approach is based on a direct approximation of AIXI, a Bayesian optimality notion for general reinforcement learning agents. Previously, it has been unclear whether the theory of AIXI could motivate the de... | {
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0909.0809 | An Infinite Family of Recursive Formulas Generating Power Moments of
Kloosterman Sums with Trace One Arguments: O(2n+1,2^r) Case | [
"math.NT",
"cs.IT",
"math.IT"
] | In this paper, we construct an infinite family of binary linear codes associated with double cosets with respect to certain maximal parabolic subgroup of the orthogonal group O(2n+1,q). Here q is a power of two. Then we obtain an infinite family of recursive formulas generating the odd power moments of Kloosterman sums... | {
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0909.0811 | Ternary Codes Associated with O^-(2n,q) and Power Moments of Kloosterman
Sums with Square Arguments | [
"math.NT",
"cs.IT",
"math.IT"
] | In this paper, we construct three ternary linear codes associated with the orthogonal group O^-(2,q) and the special orthogonal groups SO^-(2,q) and SO^-(4,q). Here q is a power of three. Then we obtain recursive formulas for the power moments of Kloosterman sums with square arguments and for the even power moments of ... | {
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0909.0844 | High-Dimensional Non-Linear Variable Selection through Hierarchical
Kernel Learning | [
"cs.LG",
"math.ST",
"stat.TH"
] | We consider the problem of high-dimensional non-linear variable selection for supervised learning. Our approach is based on performing linear selection among exponentially many appropriately defined positive definite kernels that characterize non-linear interactions between the original variables. To select efficiently... | {
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0909.0901 | Assessing the Impact of Informedness on a Consultant's Profit | [
"cs.AI"
] | We study the notion of informedness in a client-consultant setting. Using a software simulator, we examine the extent to which it pays off for consultants to provide their clients with advice that is well-informed, or with advice that is merely meant to appear to be well-informed. The latter strategy is beneficial in t... | {
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0909.0996 | The Kalman Like Particle Filter : Optimal Estimation With Quantized
Innovations/Measurements | [
"cs.IT",
"math.IT",
"math.OC"
] | We study the problem of optimal estimation and control of linear systems using quantized measurements, with a focus on applications over sensor networks. We show that the state conditioned on a causal quantization of the measurements can be expressed as the sum of a Gaussian random vector and a certain truncated Gaussi... | {
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0909.1011 | Bits About the Channel: Multi-round Protocols for Two-way Fading
Channels | [
"cs.IT",
"math.IT"
] | Most communication systems use some form of feedback, often related to channel state information. In this paper, we study diversity multiplexing tradeoff for both FDD and TDD systems, when both receiver and transmitter knowledge about the channel is noisy and potentially mismatched. For FDD systems, we first extend the... | {
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0909.1021 | A multiagent urban traffic simulation Part I: dealing with the ordinary | [
"cs.AI"
] | We describe in this article a multiagent urban traffic simulation, as we believe individual-based modeling is necessary to encompass the complex influence the actions of an individual vehicle can have on the overall flow of vehicles. We first describe how we build a graph description of the network from purely geometri... | {
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0909.1062 | New Approximation Algorithms for Minimum Enclosing Convex Shapes | [
"cs.CG",
"cs.DS",
"cs.LG"
] | Given $n$ points in a $d$ dimensional Euclidean space, the Minimum Enclosing Ball (MEB) problem is to find the ball with the smallest radius which contains all $n$ points. We give a $O(nd\Qcal/\sqrt{\epsilon})$ approximation algorithm for producing an enclosing ball whose radius is at most $\epsilon$ away from the opti... | {
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0909.1115 | Capacity Region of Layered Erasure One-sided Interference Channels
without CSIT | [
"cs.IT",
"math.IT"
] | This paper studies a layered erasure interference channel model, which is a simplification of the Gaussian interference channel with fading using the deterministic model approach. In particular, the capacity region of the layered erasure one-sided interference channel is completely determined, assuming that the channel... | {
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0909.1127 | Anonymization with Worst-Case Distribution-Based Background Knowledge | [
"cs.DB",
"cs.CR"
] | Background knowledge is an important factor in privacy preserving data publishing. Distribution-based background knowledge is one of the well studied background knowledge. However, to the best of our knowledge, there is no existing work considering the distribution-based background knowledge in the worst case scenario,... | {
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0909.1147 | Empowering OLAC Extension using Anusaaraka and Effective text processing
using Double Byte coding | [
"cs.CL"
] | The paper reviews the hurdles while trying to implement the OLAC extension for Dravidian / Indian languages. The paper further explores the possibilities which could minimise or solve these problems. In this context, the Chinese system of text processing and the anusaaraka system are scrutinised. | {
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0909.1151 | n-Opposition theory to structure debates | [
"cs.AI"
] | 2007 was the first international congress on the ?square of oppositions?. A first attempt to structure debate using n-opposition theory was presented along with the results of a first experiment on the web. Our proposal for this paper is to define relations between arguments through a structure of opposition (square of... | {
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0909.1153 | Recursive formulas generating power moments of multi-dimensional
Kloosterman sums and $m$-multiple power moments of Kloosterman sums | [
"math.NT",
"cs.IT",
"math.IT"
] | In this paper, we construct two binary linear codes associated with multi-dimensional and $m -$multiple power Kloosterman sums (for any fixed $m$) over the finite field $\mathbb{F}_{q}$. Here $q$ is a power of two. The former codes are dual to a subcode of the binary hyper-Kloosterman code. Then we obtain two recursive... | {
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0909.1156 | Ternary Codes Associated with $O(3,3^r)$ and Power Moments of
Kloosterman Sums with Trace Nonzero Square Arguments | [
"math.NT",
"cs.IT",
"math.IT"
] | In this paper, we construct two ternary linear codes $C(SO(3,q))$ and $C(O(3,q))$, respectively associated with the orthogonal groups $SO(3,q)$ and $O(3,q)$. Here $q$ is a power of three. Then we obtain two recursive formulas for the power moments of Kloosterman sums with $``$trace nonzero square arguments" in terms of... | {
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0909.1175 | Infinite Families of Recursive Formulas Generating Power Moments of
Ternary Kloosterman Sums with Trace Nonzero Square Arguments: $O(2n+1,2^{r})$
Case | [
"math.NT",
"cs.IT",
"math.IT"
] | In this paper, we construct four infinite families of ternary linear codes associated with double cosets in $O(2n+1,q)$ with respect to certain maximal parabolic subgroup of the special orthogonal group $SO(2n+1,q)$. Here $q$ is a power of three. Then we obtain two infinite families of recursive formulas, the one gener... | {
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0909.1178 | Infinite Families of Recursive Formulas Generating Power Moments of
Ternary Kloosterman Sums with Square Arguments Associated with
$O^{-}_{}(2n,q)$ | [
"math.NT",
"cs.IT",
"math.IT"
] | In this paper, we construct eight infinite families of ternary linear codes associated with double cosets with respect to certain maximal parabolic subgroup of the special orthogonal group $SO^{-}(2n,q)$. Here ${q}$ is a power of three. Then we obtain four infinite families of recursive formulas for power moments of Kl... | {
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0909.1186 | Scheme of thinking quantum systems | [
"quant-ph",
"cond-mat.quant-gas",
"cs.AI"
] | A general approach describing quantum decision procedures is developed. The approach can be applied to quantum information processing, quantum computing, creation of artificial quantum intelligence, as well as to analyzing decision processes of human decision makers. Our basic point is to consider an active quantum sys... | {
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0909.1209 | SNR Estimation in Maximum Likelihood Decoded Spatial Multiplexing | [
"cs.IT",
"math.IT"
] | Link adaptation is a crucial part of many modern communications systems, allowing the system to adapt the transmission and reception strategies to changes in channel conditions. One of the fundamental components of the link adaptation mechanism is signal to noise ratio (SNR) estimation, measuring the instantaneous (mos... | {
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0909.1308 | Efficient Learning of Sparse Conditional Random Fields for Supervised
Sequence Labelling | [
"cs.LG",
"cs.CL"
] | Conditional Random Fields (CRFs) constitute a popular and efficient approach for supervised sequence labelling. CRFs can cope with large description spaces and can integrate some form of structural dependency between labels. In this contribution, we address the issue of efficient feature selection for CRFs based on imp... | {
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0909.1310 | Sparse image representation by discrete cosine/spline based dictionaries | [
"math.NA",
"cs.CV"
] | Mixed dictionaries generated by cosine and B-spline functions are considered. It is shown that, by highly nonlinear approaches such as Orthogonal Matching Pursuit, the discrete version of the proposed dictionaries yields a significant gain in the sparsity of an image representation. | {
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0909.1334 | Lower Bounds for BMRM and Faster Rates for Training SVMs | [
"cs.LG",
"cs.AI",
"cs.DS"
] | Regularized risk minimization with the binary hinge loss and its variants lies at the heart of many machine learning problems. Bundle methods for regularized risk minimization (BMRM) and the closely related SVMStruct are considered the best general purpose solvers to tackle this problem. It was recently shown that BMRM... | {
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0909.1338 | "Rewiring" Filterbanks for Local Fourier Analysis: Theory and Practice | [
"cs.IT",
"math.IT"
] | This article describes a series of new results outlining equivalences between certain "rewirings" of filterbank system block diagrams, and the corresponding actions of convolution, modulation, and downsampling operators. This gives rise to a general framework of reverse-order and convolution subband structures in filte... | {
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0909.1344 | Multiuser MISO Transmitter Optimization for Inter-Cell Interference
Mitigation | [
"cs.IT",
"math.IT"
] | The transmitter optimization (i.e., steering vectors and power allocation) for a MISO Broadcast Channel (MISO-BC) subject to general linear constraints is considered. Such constraints include, as special cases, the sum power, the per-antenna or per-group-of-antennas power, and "forbidden interference direction" constra... | {
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0909.1346 | Reordering Columns for Smaller Indexes | [
"cs.DB"
] | Column-oriented indexes-such as projection or bitmap indexes-are compressed by run-length encoding to reduce storage and increase speed. Sorting the tables improves compression. On realistic data sets, permuting the columns in the right order before sorting can reduce the number of runs by a factor of two or more. Unfo... | {
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0909.1397 | Resource Matchmaking Algorithm using Dynamic Rough Set in Grid
Environment | [
"cs.DC",
"cs.AI"
] | Grid environment is a service oriented infrastructure in which many heterogeneous resources participate to provide the high performance computation. One of the bug issues in the grid environment is the vagueness and uncertainty between advertised resources and requested resources. Furthermore, in an environment such as... | {
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0909.1405 | A Hybrid Multi Objective Particle Swarm Optimization Method to Discover
Biclusters in Microarray Data | [
"cs.CE",
"cs.NE"
] | In recent years, with the development of microarray technique, discovery of useful knowledge from microarray data has become very important. Biclustering is a very useful data mining technique for discovering genes which have similar behavior. In microarray data, several objectives have to be optimized simultaneously a... | {
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0909.1426 | L^p boundedness of the Hilbert transform | [
"cs.IT",
"math.IT"
] | The Hilbert transform is essentially the \textit{only} singular operator in one dimension. This undoubtedly makes it one of the the most important linear operators in harmonic analysis. The Hilbert transform has had a profound bearing on several theoretical and physical problems across a wide range of disciplines; this... | {
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0909.1460 | Accuracy Improvement for Stiffness Modeling of Parallel Manipulators | [
"cs.RO"
] | The paper focuses on the accuracy improvement of stiffness models for parallel manipulators, which are employed in high-speed precision machining. It is based on the integrated methodology that combines analytical and numerical techniques and deals with multidimensional lumped-parameter models of the links. The latter ... | {
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0909.1475 | Design optimization of parallel manipulators for high-speed precision
machining applications | [
"cs.RO"
] | The paper proposes an integrated approach to the design optimization of parallel manipulators, which is based on the concept of the workspace grid and utilizes the goal-attainment formulation for the global optimization. To combine the non-homogenous design specification, the developed optimization technique transforms... | {
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0909.1525 | Training-Embedded, Single-Symbol ML-Decodable, Distributed STBCs for
Relay Networks | [
"cs.IT",
"math.IT"
] | Recently, a special class of complex designs called Training-Embedded Complex Orthogonal Designs (TE-CODs) has been introduced to construct single-symbol Maximum Likelihood (ML) decodable (SSD) distributed space-time block codes (DSTBCs) for two-hop wireless relay networks using the amplify and forward protocol. Howeve... | {
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0909.1599 | Frame Permutation Quantization | [
"cs.IT",
"math.IT"
] | Frame permutation quantization (FPQ) is a new vector quantization technique using finite frames. In FPQ, a vector is encoded using a permutation source code to quantize its frame expansion. This means that the encoding is a partial ordering of the frame expansion coefficients. Compared to ordinary permutation source co... | {
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0909.1605 | Kernel Spectral Curvature Clustering (KSCC) | [
"cs.CV"
] | Multi-manifold modeling is increasingly used in segmentation and data representation tasks in computer vision and related fields. While the general problem, modeling data by mixtures of manifolds, is very challenging, several approaches exist for modeling data by mixtures of affine subspaces (which is often referred to... | {
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0909.1608 | Motion Segmentation by SCC on the Hopkins 155 Database | [
"cs.CV"
] | We apply the Spectral Curvature Clustering (SCC) algorithm to a benchmark database of 155 motion sequences, and show that it outperforms all other state-of-the-art methods. The average misclassification rate by SCC is 1.41% for sequences having two motions and 4.85% for three motions. | {
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0909.1623 | Two channel paraunitary filter banks based on linear canonical transform | [
"cs.IT",
"math.IT"
] | In this paper a two channel paraunitary filter bank is proposed, which is based on linear canonical transform, instead of discrete Fourier transform. Input-output relation for such a filter bank are derived in terms of polyphase matrices and modulation matrices. It is shown that like conventional filter banks, the LCT ... | {
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0909.1626 | Computing the distance distribution of systematic non-linear codes | [
"cs.DM",
"cs.IT",
"math.IT"
] | The most important families of non-linear codes are systematic. A brute-force check is the only known method to compute their weight distribution and distance distribution. On the other hand, it outputs also all closest word pairs in the code. In the black-box complexity model, the check is optimal among closest-pair a... | {
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0909.1638 | Single-generation Network Coding for Networks with Delay | [
"cs.IT",
"math.IT"
] | A single-source network is said to be \textit{memory-free} if all of the internal nodes (those except the source and the sinks) do not employ memory but merely send linear combinations of the incoming symbols (received at their incoming edges) on their outgoing edges. Memory-free networks with delay using network codin... | {
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0909.1758 | Teaching an Old Elephant New Tricks | [
"cs.DB",
"cs.DS",
"cs.PF"
] | In recent years, column stores (or C-stores for short) have emerged as a novel approach to deal with read-mostly data warehousing applications. Experimental evidence suggests that, for certain types of queries, the new features of C-stores result in orders of magnitude improvement over traditional relational engines. A... | {
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0909.1759 | Declarative Reconfigurable Trust Management | [
"cs.CR",
"cs.DB"
] | In recent years, there has been a proliferation of declarative logic-based trust management languages and systems proposed to ease the description, configuration, and enforcement of security policies. These systems have different tradeoffs in expressiveness and complexity, depending on the security constructs (e.g. aut... | {
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0909.1760 | LifeRaft: Data-Driven, Batch Processing for the Exploration of
Scientific Databases | [
"cs.DB"
] | Workloads that comb through vast amounts of data are gaining importance in the sciences. These workloads consist of "needle in a haystack" queries that are long running and data intensive so that query throughput limits performance. To maximize throughput for data-intensive queries, we put forth LifeRaft: a query proce... | {
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0909.1763 | Remembrance: The Unbearable Sentience of Being Digital | [
"cs.DB",
"cs.OS"
] | We introduce a world vision in which data is endowed with memory. In this data-centric systems paradigm, data items can be enabled to retain all or some of their previous values. We call this ability "remembrance" and posit that it empowers significant leaps in the security, availability, and general operational dimens... | {
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0909.1764 | Data Management for High-Throughput Genomics | [
"cs.DB",
"q-bio.GN"
] | Today's sequencing technology allows sequencing an individual genome within a few weeks for a fraction of the costs of the original Human Genome project. Genomics labs are faced with dozens of TB of data per week that have to be automatically processed and made available to scientists for further analysis. This paper e... | {
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0909.1765 | Qunits: queried units in database search | [
"cs.DB",
"cs.IR"
] | Keyword search against structured databases has become a popular topic of investigation, since many users find structured queries too hard to express, and enjoy the freedom of a ``Google-like'' query box into which search terms can be entered. Attempts to address this problem face a fundamental dilemma. Database queryi... | {
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0909.1766 | RIOT: I/O-Efficient Numerical Computing without SQL | [
"cs.DB"
] | R is a numerical computing environment that is widely popular for statistical data analysis. Like many such environments, R performs poorly for large datasets whose sizes exceed that of physical memory. We present our vision of RIOT (R with I/O Transparency), a system that makes R programs I/O-efficient in a way transp... | {
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0909.1767 | Towards Eco-friendly Database Management Systems | [
"cs.DB"
] | Database management systems (DBMSs) have largely ignored the task of managing the energy consumed during query processing. Both economical and environmental factors now require that DBMSs pay close attention to energy consumption. In this paper we approach this issue by considering energy consumption as a first-class p... | {
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0909.1768 | Unbundling Transaction Services in the Cloud | [
"cs.DB",
"cs.DC"
] | The traditional architecture for a DBMS engine has the recovery, concurrency control and access method code tightly bound together in a storage engine for records. We propose a different approach, where the storage engine is factored into two layers (each of which might have multiple heterogeneous instances). A Transac... | {
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0909.1769 | Interactive Data Integration through Smart Copy & Paste | [
"cs.DB",
"cs.AI"
] | In many scenarios, such as emergency response or ad hoc collaboration, it is critical to reduce the overhead in integrating data. Ideally, one could perform the entire process interactively under one unified interface: defining extractors and wrappers for sources, creating a mediated schema, and adding schema mappings ... | {
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0909.1770 | From Declarative Languages to Declarative Processing in Computer Games | [
"cs.DB",
"cs.MA"
] | Recent work has shown that we can dramatically improve the performance of computer games and simulations through declarative processing: Character AI can be written in an imperative scripting language which is then compiled to relational algebra and executed by a special games engine with features similar to a main mem... | {
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0909.1771 | The Role of Schema Matching in Large Enterprises | [
"cs.DB"
] | To date, the principal use case for schema matching research has been as a precursor for code generation, i.e., constructing mappings between schema elements with the end goal of data transfer. In this paper, we argue that schema matching plays valuable roles independent of mapping construction, especially as schemata ... | {
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0909.1772 | Visualizing the robustness of query execution | [
"cs.DB",
"cs.PF"
] | In database query processing, actual run-time conditions (e.g., actual selectivities and actual available memory) very often differ from compile-time expectations of run-time conditions (e.g., estimated predicate selectivities and anticipated memory availability). Robustness of query processing can be defined as the ab... | {
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0909.1773 | Search Driven Analysis of Heterogenous XML Data | [
"cs.DB"
] | Analytical processing on XML repositories is usually enabled by designing complex data transformations that shred the documents into a common data warehousing schema. This can be very time-consuming and costly, especially if the underlying XML data has a lot of variety in structure, and only a subset of attributes cons... | {
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0909.1774 | Social Systems: Can we Do More Than Just Poke Friends? | [
"cs.DB",
"cs.CY"
] | Social sites have become extremely popular among users but have they attracted equal attention from the research community? Are they good only for simple tasks, such as tagging and poking friends? Do they present any new or interesting research challenges? In this paper, we describe the insights we have obtained implem... | {
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0909.1775 | SCADS: Scale-Independent Storage for Social Computing Applications | [
"cs.DB",
"cs.DC"
] | Collaborative web applications such as Facebook, Flickr and Yelp present new challenges for storing and querying large amounts of data. As users and developers are focused more on performance than single copy consistency or the ability to perform ad-hoc queries, there exists an opportunity for a highly-scalable system ... | {
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0909.1776 | Sailing the Information Ocean with Awareness of Currents: Discovery and
Application of Source Dependence | [
"cs.DB",
"cs.LG"
] | The Web has enabled the availability of a huge amount of useful information, but has also eased the ability to spread false information and rumors across multiple sources, making it hard to distinguish between what is true and what is not. Recent examples include the premature Steve Jobs obituary, the second bankruptcy... | {
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0909.1777 | Capturing Data Uncertainty in High-Volume Stream Processing | [
"cs.DB"
] | We present the design and development of a data stream system that captures data uncertainty from data collection to query processing to final result generation. Our system focuses on data that is naturally modeled as continuous random variables. For such data, our system employs an approach grounded in probability and... | {
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0909.1778 | A Case for A Collaborative Query Management System | [
"cs.DB"
] | Over the past 40 years, database management systems (DBMSs) have evolved to provide a sophisticated variety of data management capabilities. At the same time, tools for managing queries over the data have remained relatively primitive. One reason for this is that queries are typically issued through applications. They ... | {
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0909.1779 | The Case for RodentStore, an Adaptive, Declarative Storage System | [
"cs.DB"
] | Recent excitement in the database community surrounding new applications?analytic, scientific, graph, geospatial, etc.?has led to an explosion in research on database storage systems. New storage systems are vital to the database community, as they are at the heart of making database systems perform well in new applica... | {
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0909.1781 | Boosting XML Filtering with a Scalable FPGA-based Architecture | [
"cs.AR",
"cs.DB"
] | The growing amount of XML encoded data exchanged over the Internet increases the importance of XML based publish-subscribe (pub-sub) and content based routing systems. The input in such systems typically consists of a stream of XML documents and a set of user subscriptions expressed as XML queries. The pub-sub system t... | {
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0909.1782 | Principles for Inconsistency | [
"cs.DB"
] | Data consistency is very desirable because strong semantic properties make it easier to write correct programs that perform as users expect. However, there are good reasons why consistency may have to be weakened to achieve other business goals. In this CIDR 2009 Perspectives paper, we present real-world reasons incons... | {
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0909.1783 | The Case for a Structured Approach to Managing Unstructured Data | [
"cs.DB",
"cs.IR"
] | The challenge of managing unstructured data represents perhaps the largest data management opportunity for our community since managing relational data. And yet we are risking letting this opportunity go by, ceding the playing field to other players, ranging from communities such as AI, KDD, IR, Web, and Semantic Web, ... | {
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0909.1784 | Energy Efficiency: The New Holy Grail of Data Management Systems
Research | [
"cs.DB",
"cs.PF"
] | Energy costs are quickly rising in large-scale data centers and are soon projected to overtake the cost of hardware. As a result, data center operators have recently started turning into using more energy-friendly hardware. Despite the growing body of research in power management techniques, there has been little work ... | {
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0909.1785 | Harnessing the Deep Web: Present and Future | [
"cs.DB"
] | Over the past few years, we have built a system that has exposed large volumes of Deep-Web content to Google.com users. The content that our system exposes contributes to more than 1000 search queries per-second and spans over 50 languages and hundreds of domains. The Deep Web has long been acknowledged to be a major s... | {
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0909.1786 | DBMSs Should Talk Back Too | [
"cs.DB",
"cs.HC"
] | Natural language user interfaces to database systems have been studied for several decades now. They have mainly focused on parsing and interpreting natural language queries to generate them in a formal database language. We envision the reverse functionality, where the system would be able to take the internal result ... | {
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0909.1801 | Randomized Sensor Selection in Sequential Hypothesis Testing | [
"cs.IT",
"math.IT"
] | We consider the problem of sensor selection for time-optimal detection of a hypothesis. We consider a group of sensors transmitting their observations to a fusion center. The fusion center considers the output of only one randomly chosen sensor at the time, and performs a sequential hypothesis test. We consider the cla... | {
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0909.1817 | Cooperative Transmission for a Vector Gaussian Parallel Relay Network | [
"cs.IT",
"math.IT"
] | In this paper, we consider a parallel relay network where two relays cooperatively help a source transmit to a destination. We assume the source and the destination nodes are equipped with multiple antennas. Three basic schemes and their achievable rates are studied: Decode-and-Forward (DF), Amplify-and-Forward (AF), a... | {
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0909.1830 | Greedy Gossip with Eavesdropping | [
"cs.DC",
"cs.AI"
] | This paper presents greedy gossip with eavesdropping (GGE), a novel randomized gossip algorithm for distributed computation of the average consensus problem. In gossip algorithms, nodes in the network randomly communicate with their neighbors and exchange information iteratively. The algorithms are simple and decentral... | {
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0909.1933 | Chromatic PAC-Bayes Bounds for Non-IID Data: Applications to Ranking and
Stationary $\beta$-Mixing Processes | [
"cs.LG",
"math.ST",
"stat.ML",
"stat.TH"
] | Pac-Bayes bounds are among the most accurate generalization bounds for classifiers learned from independently and identically distributed (IID) data, and it is particularly so for margin classifiers: there have been recent contributions showing how practical these bounds can be either to perform model selection (Ambrol... | {
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0909.2009 | A Fresh Look at Coding for q-ary Symmetric Channels | [
"cs.IT",
"math.IT"
] | This paper studies coding schemes for the $q$-ary symmetric channel based on binary low-density parity-check (LDPC) codes that work for any alphabet size $q=2^m$, $m\in\mathbb{N}$, thus complementing some recently proposed packet-based schemes requiring large $q$. First, theoretical optimality of a simple layered schem... | {
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0909.2017 | Sparsity and `Something Else': An Approach to Encrypted Image Folding | [
"cs.CV",
"cs.IT",
"math.IT"
] | A property of sparse representations in relation to their capacity for information storage is discussed. It is shown that this feature can be used for an application that we term Encrypted Image Folding. The proposed procedure is realizable through any suitable transformation. In particular, in this paper we illustrate... | {
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0909.2030 | Size Bounds for Conjunctive Queries with General Functional Dependencies | [
"cs.DB",
"cs.DS"
] | This paper extends the work of Gottlob, Lee, and Valiant (PODS 2009)[GLV], and considers worst-case bounds for the size of the result Q(D) of a conjunctive query Q to a database D given an arbitrary set of functional dependencies. The bounds in [GLV] are based on a "coloring" of the query variables. In order to extend ... | {
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0909.2058 | SocialScope: Enabling Information Discovery on Social Content Sites | [
"cs.DB",
"cs.HC",
"cs.IR",
"cs.PL"
] | Recently, many content sites have started encouraging their users to engage in social activities such as adding buddies on Yahoo! Travel and sharing articles with their friends on New York Times. This has led to the emergence of {\em social content sites}, which is being facilitated by initiatives like OpenID (http://w... | {
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0909.2062 | Inter-Operator Feedback in Data Stream Management Systems via
Punctuation | [
"cs.DB"
] | High-volume, high-speed data streams may overwhelm the capabilities of stream processing systems; techniques such as data prioritization, avoidance of unnecessary processing and on-demand result production may be necessary to reduce processing requirements. However, the dynamic nature of data streams, in terms of both ... | {
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0909.2074 | Sum Capacity of MIMO Interference Channels in the Low Interference
Regime | [
"cs.IT",
"math.IT"
] | Using Gaussian inputs and treating interference as noise at the receivers has recently been shown to be sum capacity achieving for the two-user single-input single-output (SISO) Gaussian interference channel in a low interference regime, where the interference levels are below certain thresholds. In this paper, such a ... | {
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0909.2091 | Paired Comparisons-based Interactive Differential Evolution | [
"cs.AI"
] | We propose Interactive Differential Evolution (IDE) based on paired comparisons for reducing user fatigue and evaluate its convergence speed in comparison with Interactive Genetic Algorithms (IGA) and tournament IGA. User interface and convergence performance are two big keys for reducing Interactive Evolutionary Compu... | {
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0909.2194 | Approximate Nearest Neighbor Search through Comparisons | [
"cs.DS",
"cs.DB",
"cs.LG"
] | This paper addresses the problem of finding the nearest neighbor (or one of the R-nearest neighbors) of a query object q in a database of n objects. In contrast with most existing approaches, we can only access the ``hidden'' space in which the objects live through a similarity oracle. The oracle, given two reference o... | {
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0909.2234 | Universal and Composite Hypothesis Testing via Mismatched Divergence | [
"cs.IT",
"cs.LG",
"math.IT",
"math.ST",
"stat.TH"
] | For the universal hypothesis testing problem, where the goal is to decide between the known null hypothesis distribution and some other unknown distribution, Hoeffding proposed a universal test in the nineteen sixties. Hoeffding's universal test statistic can be written in terms of Kullback-Leibler (K-L) divergence bet... | {
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0909.2290 | Slicing: A New Approach to Privacy Preserving Data Publishing | [
"cs.DB",
"cs.CR"
] | Several anonymization techniques, such as generalization and bucketization, have been designed for privacy preserving microdata publishing. Recent work has shown that generalization loses considerable amount of information, especially for high-dimensional data. Bucketization, on the other hand, does not prevent members... | {
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0909.2292 | Random Sampling Using Shannon Interpolation and Poisson Summation
Formulae | [
"cs.IT",
"cs.CE",
"math.IT",
"math.NA"
] | This report mainly focused on the basic concepts and the recovery methods for the random sampling. The recovery methods involve the orthogonal matching pursuit algorithm and the gradient-based total variation strategy. In particular, a fast and efficient observation matrix filling technique was implemented by the class... | {
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} |
0909.2309 | Logic with Verbs | [
"cs.AI",
"cs.LO"
] | The aim of this paper is to introduce a logic in which nouns and verbs are handled together as a deductive reasoning, and also to observe the relationship between nouns and verbs as well as between logics and conversations. | {
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0909.2336 | Two-Phase Flow in Heterogeneous Media | [
"cs.CE"
] | In this study, we investigate the appeared complexity of two-phase flow (air-water) in a heterogeneous soil where the supposed porous media is non-deformable media which is under the time-dependent gas pressure. After obtaining of governing equations and considering the capillary pressure-saturation and permeability fu... | {
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0909.2339 | Back analysis based on SOM-RST system | [
"cs.AI"
] | This paper describes application of information granulation theory, on the back analysis of Jeffrey mine southeast wall Quebec. In this manner, using a combining of Self Organizing Map (SOM) and rough set theory (RST), crisp and rough granules are obtained. Balancing of crisp granules and sub rough granules is rendered... | {
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0909.2345 | Weblog Clustering in Multilinear Algebra Perspective | [
"cs.IR"
] | This paper describes a clustering method to group the most similar and important weblogs with their descriptive shared words by using a technique from multilinear algebra known as PARAFAC tensor decomposition. The proposed method first creates labeled-link network representation of the weblog datasets, where the nodes ... | {
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0909.2358 | Message Passing for Integrating and Assessing Renewable Generation in a
Redundant Power Grid | [
"physics.soc-ph",
"cond-mat.stat-mech",
"cs.CE",
"physics.data-an"
] | A simplified model of a redundant power grid is used to study integration of fluctuating renewable generation. The grid consists of large number of generator and consumer nodes. The net power consumption is determined by the difference between the gross consumption and the level of renewable generation. The gross consu... | {
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0909.2373 | An Efficient Secure Multimodal Biometric Fusion Using Palmprint and Face
Image | [
"cs.CV",
"cs.CR"
] | Biometrics based personal identification is regarded as an effective method for automatically recognizing, with a high confidence a person's identity. A multimodal biometric systems consolidate the evidence presented by multiple biometric sources and typically better recognition performance compare to system based on a... | {
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0909.2375 | Similarity Matching Techniques for Fault Diagnosis in Automotive
Infotainment Electronics | [
"cs.AI"
] | Fault diagnosis has become a very important area of research during the last decade due to the advancement of mechanical and electrical systems in industries. The automobile is a crucial field where fault diagnosis is given a special attention. Due to the increasing complexity and newly added features in vehicles, a co... | {
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0909.2376 | Performing Hybrid Recommendation in Intermodal Transportation-the
FTMarket System's Recommendation Module | [
"cs.AI"
] | Diverse recommendation techniques have been already proposed and encapsulated into several e-business applications, aiming to perform a more accurate evaluation of the existing information and accordingly augment the assistance provided to the users involved. This paper reports on the development and integration of a r... | {
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0909.2379 | Implementation of Rule Based Algorithm for Sandhi-Vicheda Of Compound
Hindi Words | [
"cs.CL"
] | Sandhi means to join two or more words to coin new word. Sandhi literally means `putting together' or combining (of sounds), It denotes all combinatory sound-changes effected (spontaneously) for ease of pronunciation. Sandhi-vicheda describes [5] the process by which one letter (whether single or cojoined) is broken to... | {
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0909.2408 | Coordination Capacity | [
"cs.IT",
"math.IT"
] | We develop elements of a theory of cooperation and coordination in networks. Rather than considering a communication network as a means of distributing information, or of reconstructing random processes at remote nodes, we ask what dependence can be established among the nodes given the communication constraints. Speci... | {
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0909.2476 | Design of an ultrasound-guided robotic brachytherapy needle insertion
system | [
"cs.RO"
] | In this paper we describe a new robotic brachytherapy needle-insertion system that is designed to replace the template used in the manual technique. After a brief review of existing robotic systems, we describe the requirements that we based our design upon. A detailed description of the proposed system follows. Our de... | {
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0909.2489 | PrisCrawler: A Relevance Based Crawler for Automated Data Classification
from Bulletin Board | [
"cs.IR"
] | Nowadays people realize that it is difficult to find information simply and quickly on the bulletin boards. In order to solve this problem, people propose the concept of bulletin board search engine. This paper describes the priscrawler system, a subsystem of the bulletin board search engine, which can automatically cr... | {
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} |
0909.2496 | Pavideoge: A Metadata Markup Video Structure in Video Search Engine | [
"cs.IR"
] | In this paper, we study the problems of video processing in video search engine. Video has now become a very important kind of data in Internet; while searching for video is still a challenging task due to the inner properties of video: requiring enormous storage space, being independent, expressing information hiddenl... | {
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} |
0909.2526 | Two Optimal One-Error-Correcting Codes of Length 13 That Are Not Doubly
Shortened Perfect Codes | [
"cs.IT",
"math.IT"
] | The doubly shortened perfect codes of length 13 are classified utilizing the classification of perfect codes in [P.R.J. \"Osterg{\aa}rd and O. Pottonen, The perfect binary one-error-correcting codes of length 15: Part I - Classification, IEEE Trans. Inform. Theory, to appear]; there are 117821 such (13,512,3) codes. By... | {
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} |
0909.2542 | Stochastic Optimization of Linear Dynamic Systems with Parametric
Uncertainties | [
"cs.AI",
"cs.IT",
"math.IT"
] | This paper describes a new approach to solving some stochastic optimization problems for linear dynamic system with various parametric uncertainties. Proposed approach is based on application of tensor formalism for creation the mathematical model of parametric uncertainties. Within proposed approach following problems... | {
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} |
0909.2622 | Transmitter Optimization for Achieving Secrecy Capacity in Gaussian MIMO
Wiretap Channels | [
"cs.IT",
"math.IT"
] | We consider a Gaussian multiple-input multiple-output (MIMO) wiretap channel model, where there exists a transmitter, a legitimate receiver and an eavesdropper, each node equipped with multiple antennas. We study the problem of finding the optimal input covariance matrix that achieves secrecy capacity subject to a powe... | {
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} |
0909.2623 | Reducing Network Traffic in Unstructured P2P Systems Using Top-k Queries | [
"cs.DB"
] | A major problem of unstructured P2P systems is their heavy network traffic. This is caused mainly by high numbers of query answers, many of which are irrelevant for users. One solution to this problem is to use Top-k queries whereby the user can specify a limited number (k) of the most relevant answers. In this paper, ... | {
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} |
0909.2626 | Reference Resolution within the Framework of Cognitive Grammar | [
"cs.CL"
] | Following the principles of Cognitive Grammar, we concentrate on a model for reference resolution that attempts to overcome the difficulties previous approaches, based on the fundamental assumption that all reference (independent on the type of the referring expression) is accomplished via access to and restructuring o... | {
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} |
0909.2705 | SET: an algorithm for consistent matrix completion | [
"cs.IT",
"math.IT"
] | A new algorithm, termed subspace evolution and transfer (SET), is proposed for solving the consistent matrix completion problem. In this setting, one is given a subset of the entries of a low-rank matrix, and asked to find one low-rank matrix consistent with the given observations. We show that this problem can be solv... | {
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} |
0909.2715 | Marking-up multiple views of a Text: Discourse and Reference | [
"cs.CL"
] | We describe an encoding scheme for discourse structure and reference, based on the TEI Guidelines and the recommendations of the Corpus Encoding Specification (CES). A central feature of the scheme is a CES-based data architecture enabling the encoding of and access to multiple views of a marked-up document. We describ... | {
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} |
0909.2718 | A Common XML-based Framework for Syntactic Annotations | [
"cs.CL"
] | It is widely recognized that the proliferation of annotation schemes runs counter to the need to re-use language resources, and that standards for linguistic annotation are becoming increasingly mandatory. To answer this need, we have developed a framework comprised of an abstract model for a variety of different annot... | {
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} |
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